Home / 20,801,803.56-31,206,961.09-7,153,177.34

Finding the Fourth Proportional to 20,801,803.56, 31,206,961.09 and 7,153,177.34

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Solution

The fourth proportional to 20,801,803.56, 31,206,961.09 and 7,153,177.34 is: 10,731,229.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,801,803.56 : 31,206,961.09 = 7,153,177.34 : x
  2. Step 2: Convert to fraction form
    20,801,803.56/31,206,961.09 = 7,153,177.34/x
  3. Step 3: Cross multiply
    20,801,803.56x = 31,206,961.09 × 7,153,177.34
  4. Step 4: Simplify right side
    20,801,803.56x = 223,228,926,919,249.69
  5. Step 5: Solve for x
    x = 223,228,926,919,249.69/20,801,803.56
  6. Step 6: Final answer
    x = 10,731,229.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.